What are the common faults of hydraulic anchor rod drilling vehicles used in coal mines（haoyun）

The editor of Shandong Haoyun Heavy Industry Machinery Co., Ltd. will discuss the common faults of hydraulic anchor rod drilling vehicles used in coal mines.

The common faults of hydraulic anchor rod drilling vehicles used in coal mines mainly include the following types:

1、 Hydraulic system malfunction

1. Unstable or low pressure: It may be caused by control valve failure, pipeline blockage, hydraulic oil leakage, hydraulic oil contamination, or insufficient oil volume.
2. Motor malfunction: manifested as the motor not rotating, slow speed or weak power, the reasons include improper adjustment of the pressure regulating valve, insufficient pressure in the hydraulic pump station, severe wear of the hydraulic motor, and blockage of the oil filter.
3. Oil cylinder failure: If the oil cylinder does not lift or the propulsion speed is low, it may be caused by damaged sealing rings, blocked inlet pipes, insufficient hydraulic system pressure, etc.

2、 Electrical system malfunction

1. Difficulty starting the motor: Fluctuations in power supply voltage, short circuits in control circuits, or damage to switches can all cause it.
2. Control system failure: It may also be caused by control circuit faults or switch issues.

3、 Other common faults

1. The drilling rig does not spray water or intermittently sprays water: reasons include blockage of the water valve or damage to the sealing ring, high or low water pressure, and inability to control the air to reach the water valve.
2. Unable to turn off the water: It may be due to the water valve getting stuck in the open position, the water switch valve getting stuck, the continuous action of the control gas on the water valve, or wear on the sleeve and shaft neck.

4、 Maintenance suggestions

Haoyun Heavy Industry suggests regularly checking the quality and quantity of hydraulic oil, and promptly replacing unqualified hydraulic oil.

2. Clean the coal dust and dirt on the surface of the body and components to prevent equipment corrosion.
3. Check whether the hydraulic system seals are damaged or aged, and replace them in a timely manner.
4. Haoyun Heavy Industry suggests regularly inspecting electrical components to ensure secure connections.